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feat[fuzz]: cuda kernel fuzzer #6131

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CodSpeed HQ / CodSpeed Performance Analysis succeeded Jan 23, 2026

Performance Gate Passed

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 2 improved benchmarks
✅ 1260 untouched benchmarks
⏩ 1290 skipped benchmarks1

Performance Changes

Mode Benchmark BASE HEAD Efficiency
⚡ WallTime u8_FoR[10M] 19.1 µs 6.2 µs ×3.1
⚡ WallTime u16_FoR[10M] 9.9 µs 8.6 µs +15.58%

Comparing ji/fuzz-arb-gpu (dd78d60) with develop (1e5cb77)

Open in CodSpeed

Footnotes

  1. 1290 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

View more details on CodSpeed HQ